Naming compounds and finding formulas

RULE 1: When two different elements combine, the compound's name is 'something -IDE'.
E.g. if sodium and chlorine combine, you'll get a compound called sodium chloride.
If magnesium and oxygen combine, youl'' get a compound called magnesium oxide.

RULE 2: When three or more different elements combine and one of them is oxygen, the compound's name is often 'something -ATE'.
E.g. copper, sulfur and oxygen…